Circular tri-level antenna



FIG. 1 is a perspective view of a circular tri-level antenna accordingto my new design;

FIG. 2 is a top plan view of the circular tri-level antenna of FIG. 1;

FIG. 3 is a bottom plan view of the circular tri-level antenna of FIG.1;

FIG. 4 is a left-side view of the circular tri-level antenna of FIG. 1;

FIG. 5 is a right-side view of the circular tri-level antenna of FIG. 1;

FIG. 6 is a front elevation view of a circular tri-level antenna of FIG.1; and,

FIG. 7 is a rear elevation view of the circular tri-level antenna ofFIG. 1.

CLAIM I claim the ornamental design for a circular tri-level antenna, asshown.